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Reinfection, Severe Outcome More Common With BA 5 Variant; Virus Spike Protein Toxic To Heart Cells

Coronavirus Spike Protein Activated Natural Immune Response, Damaged Heart Muscle Cells

Coronavirus Spike Protein Activated Natural Immune Response, Damaged Heart Muscle Cells
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Reinfection, severe outcome more common with BA 5 variant; virus spike protein toxic to heart cells

Reinfection, severe outcome more common with BA 5 variant; virus spike protein toxic to heart cells

Reinfection, severe outcome more common with BA 5 variant; virus spike protein toxic to heart cells

Compared with the earlier Omicron BA.2 subvariant, currently dominant Omicron BA.5 is linked with higher odds of causing a second SARS-COV-2 infection regardless of vaccination status, a study from Portugal suggests.  The spike protein on its surface that the coronavirus uses to break into heart muscle cells also triggers a damaging attack from the immune system, according to new research.

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